Summerville, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerville, a town in Union County, Oregon.
This Afternoon
75°F
Sunny
Sunny. High near 75, with temperatures falling to around 72 in the afternoon. Northwest wind 1 to 9 mph.
7-day forecast for Summerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 75°F | Sunny | 1 to 9 mph NW | 5% |
| Tonight | 44°F | Mostly Clear | 1 to 7 mph N | 4% |
| Saturday | 79°F | Sunny | 1 to 7 mph N | 1% |
| Saturday Night | 45°F | Mostly Clear | 0 to 7 mph N | 0% |
| Sunday | 82°F | Sunny | 2 mph E | 0% |
| Sunday Night | 48°F | Mostly Clear | 3 mph E | 0% |
| Monday | 84°F | Sunny | 1 to 5 mph S | 0% |
| Monday Night | 48°F | Mostly Clear | 1 to 5 mph W | 0% |
| Tuesday | 81°F | Sunny | 1 to 7 mph SW | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 7 mph W | 1% |
| Wednesday | 79°F | Sunny | 1 to 5 mph W | 0% |
| Wednesday Night | 46°F | Partly Cloudy | 5 mph N | 0% |
| Thursday | 83°F | Sunny | 3 to 9 mph S | 1% |
| Thursday Night | 48°F | Partly Cloudy | 5 to 9 mph SW | 4% |
Forecast source: National Weather Service (api.weather.gov) for Summerville (45.490, -118.004). Updated through the day.
Growing snapshot for Summerville
Last spring frost
May 24
First fall frost
Sep 18
Growing season
114 days
Hardiness zone
6b
More local growing data for Summerville: nearby ZIP 97876 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elgin, Or (5.9 mi from Summerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.